According to UK retailer The Carphone Warehouse, Nokia’s N96 - which it announced at the Mobile World Congress back in February - is expected to launch in the UK in August 2008. That would fall comfortably in the Q3 timeframe Nokia originally estimated. The N96 will replace the N95 8GB, bringing the styling up to date with Nokia’s current range as well as adding DVB-H mobile TV, a dual-LED flash and clever kick-stand to prop up the handset while watching TV and video.

In addition to unveiling the new flagship N96, Nokia has also announced the N78 handset, designed to take advantage of the new Ovi suite of Nokia services. It features A-GPS, with free Nokia Maps, Wi-Fi and 3G HSPDA connectivity, a 3.2-megapixel camera with Carl Zeiss optics, and support for Micro SD memory card, currently available up to 8GB in capacity.

According to Nokia, the "novelty" features of the N78 include the geographical tagging of photos and an integrated FM transmitter that allows music to be played on any FM radio, in a car or at home.
The N78 is expected to be available during the second quarter of this year, with an estimated pre-tax retail price of around €350.

There is no deffinite price yet but it has been rumored at $799.99 or £405
And also about the differences about N95 and N96- there is one important difference. N96 is said to be able to show live translation of digital programs which is a breakthrough in mobile technologies. Now that's kinda cool